城市快速路速度限制优化设计研究

发布时间：2018-06-30 18:16

本文选题：城市快速路 + 速度限制　；参考：《河北工业大学》2014年硕士论文

【摘要】：随着城镇化建设的推进，全国城市化水平不断提高，城市机动车的保有量也在加速增长。为缓解机动车给城市交通带来的如拥堵、空气污染等压力，很多城市开始修建城市快速路系统，以提高道路运行效率，缩短居民出行时间成本。城市快速路是介于高速公路与城市道路之间的一种道路，但从目前我国城市快速路发展来看，，缺乏对城市快速路的系统化深入认识，缺乏适用于城市快速路交通流模型的建立、优化设计、管理控制等相关深入研究与的具体工程应用，对城市快速路的分析研究多借鉴高速公路相关理论方法和有关。本文在分析城市快速路系统的交通流特点和城市快速路速度限制的影响因素基础上，应用元胞自动机理论建立城市快速路系统交通流的仿真模型，通过仿真实验分别确定城市快速路在一般情况下依据道路几何线形速度限制设计最优值确定，道路拥堵、以及维修和交通事故各种情况下导致单车道封闭情况下的可变速度限制最优值，以邢台市快速路系统作为实例进行了验证，并提出设置路面物理设施和路侧电子设施与速度限制措施相结合的速度限制设计内容，从而为城市快速路减少交通事故的发生、保证交通安全、提高通行效率提供决策支持。
[Abstract]:With the promotion of urbanization, the level of urbanization in the whole country is increasing, and the number of urban motor vehicles is increasing. In order to alleviate the pressure of traffic congestion and air pollution, many cities have begun to build urban expressway system to improve road operation efficiency and shorten the travel time cost of residents. The speed road is a road between the expressway and the city road, but from the current development of the urban expressway in China, it lacks a deep understanding of the systematization of the urban expressway, the lack of the establishment of the traffic flow model, the optimization design, the management control and so on. The analysis and study of freeway is based on the theory and method of expressway.
On the basis of analyzing the traffic flow characteristics of urban expressway system and the influence factors of speed limit of urban expressway, this paper uses cellular automata theory to establish the simulation model of urban expressway system traffic flow. Through the simulation experiment, the urban expressway is determined to be optimal according to the geometric linear speed limit of the road. The value is determined, the road congestion and the maintenance and traffic accidents lead to the optimal value of variable speed limit under the condition of single lane closed. The Xingtai expressway system is verified as an example, and the speed limit design content is set up with the combination of the pavement physical facilities and the road side electronic facilities and the speed limit measures. It provides decision support for reducing traffic accidents, ensuring traffic safety and improving traffic efficiency on urban expressways.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491

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